Research Article

Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography

Volume: 53 Number: 1 March 10, 2026
EN TR

Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography

Abstract

Objectives: Oncologic imaging, suspected intestinal leaks, fistulas, abscesses and collections, abdominal pain, and computed tomography colonography are the indications for the use of oral contrast media. The distal colon and rectum opacification is not always achieved with the standard technique in routine studies. Our aim is to compare the effect of 1.5-hour vs. 4-6-hour contrast media ingestion durations on distal colon and rectum opacification in abdominal computed tomography. Methods: Adult patients in the year of 2023 were retrospectively grouped: those with a 4-6 hour contrast media ingestion duration (study group) and age- and sex-matched patients with a 1.5 hour contrast media ingestion duration (control group). After exclusions, there were 200 patients in total. Groups were evaluated for the association between contrast media ingestion durations and the most distal bowel segment opacified. Results: Results showed a significant association between contrast material ingestion duration and the most distal opacified bowel segment (p<0.001). The contrast reached the rectum in 37% of the 1.5-hour group and 67% of the 4-6 hour group. Sex also affected opacification, with men having more distal bowel opacification (p=0.017). Conclusions: Longer contrast media ingestion durations lead to almost 1.5-2 times more distal colon and rectum opacification, which could be adjusted based on suspected pathology location, though longer durations may reduce patient compliance.

Keywords

Ethical Statement

This study is executed in Kırklareli Training and Research Hospital after the approval of Kırklareli University Ethics Committee for Non-interventional Clinical Studies (30.01.2024 / P20240003-03) on adult patients.

References

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Details

Primary Language

English

Subjects

Health Care Administration, Medical Education, Health Services and Systems (Other)

Journal Section

Research Article

Authors

Halis Harun Öztürk This is me
Türkiye

Publication Date

March 10, 2026

Submission Date

August 12, 2025

Acceptance Date

February 18, 2026

Published in Issue

Year 2026 Volume: 53 Number: 1

APA
Küskün, A., Öztürk, H. H., Tepe, M. S., Günay, B., Ulaş, E., & Kostak, Ö. (2026). Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography. Dicle Medical Journal, 53(1), 109-115. https://doi.org/10.5798/dicletip.1906461
AMA
1.Küskün A, Öztürk HH, Tepe MS, Günay B, Ulaş E, Kostak Ö. Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography. Dicle Medical Journal. 2026;53(1):109-115. doi:10.5798/dicletip.1906461
Chicago
Küskün, Atakan, Halis Harun Öztürk, Muzaffer Savaş Tepe, Burak Günay, Efehan Ulaş, and Ömer Kostak. 2026. “Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography”. Dicle Medical Journal 53 (1): 109-15. https://doi.org/10.5798/dicletip.1906461.
EndNote
Küskün A, Öztürk HH, Tepe MS, Günay B, Ulaş E, Kostak Ö (March 1, 2026) Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography. Dicle Medical Journal 53 1 109–115.
IEEE
[1]A. Küskün, H. H. Öztürk, M. S. Tepe, B. Günay, E. Ulaş, and Ö. Kostak, “Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography”, Dicle Medical Journal, vol. 53, no. 1, pp. 109–115, Mar. 2026, doi: 10.5798/dicletip.1906461.
ISNAD
Küskün, Atakan - Öztürk, Halis Harun - Tepe, Muzaffer Savaş - Günay, Burak - Ulaş, Efehan - Kostak, Ömer. “Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography”. Dicle Medical Journal 53/1 (March 1, 2026): 109-115. https://doi.org/10.5798/dicletip.1906461.
JAMA
1.Küskün A, Öztürk HH, Tepe MS, Günay B, Ulaş E, Kostak Ö. Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography. Dicle Medical Journal. 2026;53:109–115.
MLA
Küskün, Atakan, et al. “Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography”. Dicle Medical Journal, vol. 53, no. 1, Mar. 2026, pp. 109-15, doi:10.5798/dicletip.1906461.
Vancouver
1.Atakan Küskün, Halis Harun Öztürk, Muzaffer Savaş Tepe, Burak Günay, Efehan Ulaş, Ömer Kostak. Impact of Oral Contrast Ingestion Duration on Distal Colon and Rectum Opacification in Abdominal Computed Tomography. Dicle Medical Journal. 2026 Mar. 1;53(1):109-15. doi:10.5798/dicletip.1906461